> For the complete documentation index, see [llms.txt](https://docs.incari.com/incari-studio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.incari.com/incari-studio/2021.1/toolbox/functions.md).

# Functions

## Introduction

The **Functions Nodes** allow the user to create their own **Nodes**, customizing the **Input** and **Output** **Sockets** and the operation performed by the **Node**.

**Functions** can be created in the **Functions** tab on the left panel of the **Logic Editor** with the **Add Function** option and then the **Node** will appear in the **Toolbox**.

Each **Function** has its own **Logic**, which is defined by the user. This **Logic** has a **Function Input** and a **Function Output** **Node**, and any other **Node** can be added to it. To open the **Function's** **Logic** tab, either double-click the **Node** or the **Function** on the **Function's** list.

**Functions** can be exported and then imported in a different **Project**.

## Contents

* [**Function**](/incari-studio/2021.1/toolbox/functions/function.md)
  * [**Function Input**](/incari-studio/2021.1/toolbox/functions/function/function-input.md)
  * [**Function Output**](/incari-studio/2021.1/toolbox/functions/function/function-output.md)